Struct ConstrainedBoxWidget 

pub struct ConstrainedBoxWidget { /* private fields */ }

Trait Implementations

impl Debug for ConstrainedBoxWidget

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Widget for ConstrainedBoxWidget

type Props<'a> = ConstrainedBox

The props that this widget needs to be created or updated. Props define all of the values that a widget’s user can specify every render.

type Response = ()

The type that the widget will return to the user when it is created or updated. This type should contain information like whether the widget was clicked, had keyboard input, or other info that might be useful.

fn new() -> Self

Create the widget.

fn update(&mut self, props: Self::Props<'_>) -> Self::Response

Update the widget with new props.

fn layout(&self, ctx: LayoutContext<'_>, input: Constraints) -> Vec2

Calculate this widget’s layout with the given constraints and return its size. The returned size must fit within the given constraints, which can be done using constraints.constrain(size).

fn flex(&self) -> (u32, FlexFit)

Returns whether this widget should grow to fill a flexible layout, and if so, what weight should be applied to it if other widgets also want to grow.

fn flow(&self) -> Flow

Returns the behavior that this widget should have when part of a layout.

fn default_layout( &self, ctx: LayoutContext<'_>, constraints: Constraints, ) -> Vec2

A convenience method that always performs the default layout strategy for a widget. This method is intended to be called from custom widget’s layout methods.

fn paint(&self, ctx: PaintContext<'_>)

Paint the widget based on its current state.

fn default_paint(&self, ctx: PaintContext<'_>)

A convenience method that always performs the default painting operation for a widget. This method is intended to be called from custom widget’s paint methods.

fn event_interest(&self) -> EventInterest

Tells which events the widget is interested in receiving.

fn event(&mut self, ctx: EventContext<'_>, event: &WidgetEvent) -> EventResponse

Handle the given event and update the widget’s state.

fn navigate( &self, ctx: NavigateContext<'_>, dir: NavDirection, ) -> Option<WidgetId>

Tell which widget should be navigated to if the user navigates in a given direction.